A `3 kg` block of wood is on a level surface where `mu_(s) = 0.25` and `mu_(s) = 0.2 `A force of `7 N` is being applied horizontal to the block Mark the correct statement(s) regarding this situation.

Options

A. if the block is initially at rest , it will remain at rest and friction force will be 7 N
B. if the block is initially moving , then it will continue its motion for forever if force applied is in direction of motion of the block .
C. if the block is initially moving and direction of applied force is same as that of motion of block then block moves with an acceleration of `(1)/(3) m//s^(2)` along its initial direction of motion .
D. if the block is initially moving and direction of applied force is opposite to that of initial motion of block then block decelerates , comes to a stop and starts moving in the opposite direction .

Answer

A, B, C